The two pearls of wisdom - Alison Goodman

Under the harsh regime of an ambitious master, candidate Eon is training to become a Dragoneye - a powerful Lord able to master wind and water to protect the land. But Eon also harbours a desperate secret...
Eon is, in fact, Eona, a young woman who has endured years of disguise as a boy for the chance to practice the Dragoneye's Art. In a world where women are only hidden wives or servants, Eona's dangerous deception is punishable by death.
Still in disguise, Eona's unprecedented talent thrusts her into the centre of a lethal struggle for the Imperial throne. Summoned by the Emperor to the opulent and treacherous Court, Eona must learn to trust her power and find the strength to face a vicious enemy who would seize her magic . . . and her life.
Inspired by ancient Chinese lore and sharing the wonders of films such as Crouching Tiger, Hidden Dragon, this thrilling novel is set in a brilliantly envisioned world where both appearances and loyalties can prove so very deceptive...